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2009 Confidence Interval Detail
077/Floyd
077-902/Lockney ISD

Category Summary

(1)
Category
(1)
Local
Value
(1)
Stratum
Ratio
(1)
State
Value
(2)
Sample
Size
(3)
Total
Parcels

Stratum
Variance
A 6,063,580 1.0130 5,985,765 9 281 .020868750
A 6,091,950 0.9409 6,474,599 9 154 .004542049
A 6,166,100 0.9628 6,404,342 8 91 .022527197
A 6,089,080 0.9259 6,576,391 8 49 .005852945
D3 12,338,980 0.9587 12,870,533 10 1,617 .000922424
Random Totals: 36,749,690   38,311,630 44 2,192  
Catg J Exception Values: 3,493,876   3,926,208      
Catg D1 Exception Values: 28,139,508   28,328,159      
Total Test Values (4): 68,383,074   70,565,997      

Margin of Error

Margin of Error Percent: 5.0000002
Margin of Error Value: 3,528,300

Confidence Interval Values (5)

State Lower Limit: 67,037,697 (State Test Value minus Margin of Error Percent)
Local Test Value: 68,383,074 (Within Confidence Interval)
State Upper Limit: 74,094,297 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 83,072,476 (See ISD Summary Worksheet)

Sources:
(1) See Stratified Category Worksheet Reports PTS236, PTS430
(2) Number of parcels sampled by staff
(3) Total Category Parcels from Stratification Report, Appraisal Roll, or Self-report
(4) Includes any parcels in A, B, C, D3, F1, G1, G2, or L1 marked as exception properties
(5) Unstudied categories and sub-categories were not included in the Confidence Interval Values
(6) Includes local value of unstudied property categories and sub-categories

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